Easy alphamonsters: Hit one or two of the key blocks with the hammer when
the board is crossed. Then, eliminate almost all monsters, leaving
two or three free. Hit the final key block on move to the top
of the board, next to the door. Wait until the unicorns approach,
collect the prize at the door, and use the hammer to finish the
Stuck unicorn kill: Mr. Do can fall onto the last unicorn on the board
if it is stuck in a hole and not lose a life.